Fig. 3.

Effect of resveratrol on translocation of GLUT4 to plasma membrane and phosphorylation of AMPK and Akt. A: Translocation of GLUT4 to plasma membrane of L6 myotubes which were exposed to 100 µM resveratrol for 15 min. GLUT4 and plasma membrane were detected by western blotting analyses with anti-GLUT4 and anti-Na⁺/K⁺ ATPase antibodies. Post-PM and PM indicate post plasma membrane and plasma membrane fractions, respectively. B, C: Effect of resveratrol on phosphorylation of AMPK (B) and Akt (C). L6 myotubes were exposed to resveratrol (10 µM) for indicated time intervals. Western blotting analyses were carried out with anti-AMPK, anti-phospho-AMPK, anti-Akt and anti-phospho-Akt antibodies. D, E: Time-dependent changes of GLUT4 translocation in L6 myotubes at 10 µM (D) or 100 µM (E) resveratrol. L6 myotubes were exposed to resveratrol for indicated time intervals. Plasma membrane fractions of L6 myotubes were subjected to western blotting analyses.